Improvement in fire-proof buildings



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RICHARD M. non, or NEW YORK, N. Y.

Letters Patent No. 90,361, dated May 25, 1869.

IMPROVEMENT IN FIRE-PROOF BUILDING-S.

The Schedule referred to in these Letters Patent and making part of the sume.

Ta au whom tf may come/rn.-

- Be it known that I, RICHARD-M. Hon, of the city, county, and State of New York, have invented a new and improvedMode of Rendering Buildings Fire-Proof; and I do hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawings, in which- Figure l is a perspective view of a model embodying Vmy invention. l

Figure 2 is a transverse sectional view of the beams, flooring, 85e.'

Similar letters of reference indicate like parts in all the drawings.

My invention relates to the construction of buildings, and consists in a novel arrangement and combination ot' parts by which the interior of a builing constructed of wood is made fire-proof.

To enable others skilled in the art to make and use my invention, I will describe the construction of the same.

J J are vertical -postsfwhich support the beams F F, cross-beams E E, and the flooring above.

These beams are coated with a layer of plaster of Paris, A, which is spread on them to about the thickness of one-fourth of an inch, or it may be applied by surrounding the post with a metal tube, and the plaster applied in a'liquid state, by pouring it into the space which is left between the post and the inner side of the tube.

This layer of non-conducting material is surrounded with a layer of paper, previously treated with tar, or similar substance. l

Over the layer of tarred paper B is placed a covering of sheet-iron, O, which is nailed, or fastened in a proper manner, to the post.

The horizontal beams F F are treated in a similar manner.

To the under side of the transverse beams E, 'I nail a narrow slat, which may be dovetailed or bevelled, if desired, to better hold the non-conducting material, in order to make a space under the beams for the layer of non-conducting material, and to provide a surface for nailing the paper and metal plates to. Small ferrules, or lugs, of. any material and shape, may be secured to the beams, instead of the slats, for the same purpose.

When the paper, B, and metal plates O have been secured to the under side of the beams E, I apply a filling of plaster of Paris, or non-conducting material, A, in the spaces between the beams and in the interstices formed by the slats on the under side of the beams. l

In laying the floorin g, I first nail sheet-iron, or other metal plates, of any desired gauge, say No. 25, and on them I place a couple of layers' of paper, treated as before stated, or the sheets of metal may be treated with lime, by applying a coating of the same to the upper surface of the metal, in place of the tarred paper.

A layer of the non-conducting material Ais spread upon the sheets before mentioned, and upon it is laid the ooring D.

In'v order to facilitate the operation of applying the coating of non-conducting material to the transverse beams E, tubes of any convenient shape and size may be placed between the beams, and the filling applied around them,as shown in fig. 2.

My purpose, in covering the metal plates on the inner surface with tarred paper, or in treating them with lime, is to prevent rust or corrosion in the metal.

The plaster of Paris, or non-conducting material, should be allowed to become thoroughly dried before the floor is subjected to use. Y

A serie-s of severe tests and-careful experiments has convinced me that a building constructed upon the principles of my invention is perfectly fire-proof.

The additional cost of employing my invention in the construction of a building is comparatively small compared to any other method oi'- rendering buildings fire-proof known to me, and I consider the method embodied in my invention of great value to builders.

Having thus fully described my invention,

-v What I claim, is-

l. The method of constructing a tire-proof building, substantially as described, consisting in the employment of the non-conducting material, the ytarred paper, or equivalent therefor, and the metal plate, combined with the beams or flooring, substantially as and for the purpose specied.

2. In combination with metal sheets, arranged as shown, the interposed tarred paper, or like material, substantially as and for the purpose set forth.

RIOHD. M. HOE.

Witnesses:

'JOHN S. HoLLINGsHEAD,

D.L O. FORNEY. 

